Home / 485,922.24-670,568-268,132.80

Finding the Fourth Proportional to 485,922.24, 670,568 and 268,132.80

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Solution

The fourth proportional to 485,922.24, 670,568 and 268,132.80 is: 370,020.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,922.24 : 670,568 = 268,132.80 : x
  2. Step 2: Convert to fraction form
    485,922.24/670,568 = 268,132.80/x
  3. Step 3: Cross multiply
    485,922.24x = 670,568 × 268,132.80
  4. Step 4: Simplify right side
    485,922.24x = 179,801,275,430.40
  5. Step 5: Solve for x
    x = 179,801,275,430.40/485,922.24
  6. Step 6: Final answer
    x = 370,020.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.